基于改进微源电压与虚拟同步机的光储微电网黑启动控制策略

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关键词:光储微电网;黑启动;下垂控制;虚拟同步机控制;控制策略中图分类号:TM615 文献标志码:A 文章编号:2095-8188(2025)10-0028-09DOI:10.16628/j.cnki.2095-8188.2025.10.004
Abstract:In order to promote new energy to replace traditional hydropower and gas units as black-start power sources,a black-startcontrol strategy for photovoltaic-storage microgridbased onimproved micro-sourcevoltage and virtual synchronous generator is proposed.Firstly,byadjusting theno-load voltageamplitude ofthedroop curveand limiting theboost time,the inrush current caused bythe saturationof the transformerfluxisavoided.Then,the virtual synchronous generator control is introduced into the photovoltaic inverter to simulate the characteristics of the traditional synchronous generator and improve thestabilityof the photovoltaicsystem.Finally,the simulation model of photovoltaic-storage microgrid is built and analyzed in MATLAB/Simulink.Theresults show thatthe improved voltage control canavoid the bus inrush curentand establisha stablevoltage.Thevirtual synchronous control enhances the support of the photovoltaic system to external fluctuations.The proposed control strategy meets the requirements of the whole process of black-start.
Key words : photovoltaic-storage microgrid; black-start; droop control; virtual synchronous generator(VSG)control;control strategy
0 引言
电网大停电事故会对社会经济产生巨大影响,黑启动恢复研究对减轻大停电带来的损失非常重要[1]。(剩余9836字)